Riveting-machine.



J. F. PIERCE J; H. A. HEINEL.

RIVETING MACHINE.

APPLICATION FILED APR.12. 19x2 Patented Apr. 22, 1919.

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JAMES F. PIERCE, 01? GLYNRICH, AND HARRY A. HEINEL, OF WHITE CLAY CREEK HUNDRED, DELAWARE, ASSIGNORS 'IO AMERICAN VULCANIZED FIBRE C0,, OF

WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

RIVETING-IVIACHINE.

Specification of Letters Patent.

Patented Apr. 22, 1949.

Application filed April 12, 1917. Serial No. 161,420.

1 b all whom it may concern:

Be it known that we, J AMES F. PIERCE and HARRY A. HEINEL, residing, respectively, at Glynrich and White Clay Creek Hundred, in the county of New Castle and State of Delaware, have invented certain new and useful Improvements in Riveting-Ma'chines, whereof the following is a specification, reference being had to the accompanying drawlngs.

Our invention relates moreparticularly to a work gaging and feeding mechanism for a riveting machine, wherein rivets are inserted through overlapped sections of the material.

An object of our invention is to provide a work gaging and feeding mechanism, whereby the work is automatically fed and the edges to be secured uniformly overlapped and held until riveted.

A further object of our invention is to provide means for shifting the work holding devices so as to position the work at predetermined points for the insertion of the rivets.

These and other objects will in part be obvious, and will in part be hereinafter more fully disclosed.

In the drawings, which show by way of illustration one embodiment of the invention, Figure I, is a side view of a riveting machine having the improvements applied thereto.

Fig. II, is a plan view of a portion of the riveting machine and the work holding devices.

Fig. III, is a sectional view on the line IIIIII of Fig. I, and

Fig. IV, is a sectional view on the line IV-IV of Fig. II.

Fig. V, is a sectional view on the line VV, of Fig. I.

Our invention consists primarily in providing a rivetingv machine having devices for placing and inserting rivets, with work holding devices which are so constructed as to clamp theoverlapped edges of the material which is to be riveted and to insure that the overlapping of these edges shall be uniform throughout. To this end, we provide gaging members against which the edges of the material are placed and these gaging members hold the edges uniformly overlapped. Not only is it essential to overlap the edges of the material uniformly but it 1s also necessary to position the work, so that the rivets may be inserted at predetermined polnts. This is accomplished by constructing the work holding devices so that they may be shifted relative to the riveting mechanism and providing automatic means for shifting said work holding devices step by step through the desired distance.

Referring more in detail to the drawings, a riveting machine is there shown consisting of a supporting base 1, having an overhanging arm 2, carrying a riveting head 3, in which the usual riveting devices are mounted. The rivets are automatically fed successively to the punch 3, in any well known manner and as such arrangement is well known in'the art, a detail illustration thereof has been omitted. Also projecting from supporting base 1, is a work supporting arm 4. This work supporting arm is in the form of a projecting bracket which facilitates the riveting of tubular articles such as baskets or the like which are preferably made of a' cellulose compound ordinarily known as fiber.

In Figs. I, and II, of the drawings a basket to be riveted is indicated at B.

The riveting tool is indicated more or less diagrammatically at 5. The anvil which cooperates therewith is indicated at 6, and is supported on arm 4. Alsomounted on arm 4, extending lengthwise thereof and proj ecting beyond the end of the arm is a supporting plate 7, which may be secured in any desirable way to arm 4. This plate 7, is formed in its upper face with a dove tailed groove or recess 8.

Mounted on supporting plate 7, is a work holder which consists of a lower clamping member 10, having a dove tailed projection 11, adapted toengage dove tailed recess or groove 8. This secures thework holder to supporting plate 7, but permits the same to slide endwise thereon. Lower clamping member 10, is slotted at 22, permitting anvil 6, to extend up therethrough. Cooperating with the lower clamping member 10, are

two clamping bars 12, and 13, each of which is provided with an ear 14, see Figs. II', and V, by means of which they are pivoted 011 pins 44, and 45, respectively. Pins 44, and 45, are mounted in a plate 46, which is held against lower clamping member 10, under yielding tension. The yielding tension is provided by means of bolts which engage plate 46, and are spring pressed against cars 48, by means of springs 49; Ears 48, are formed integrally with lower clamping member 10, and project outwardly therefrom on both sides adjacent the rear end of slot 22. In this way a self adj ustable pivot is formed so that "clamping members 12, and 13, adjust themselves to the thickness of the material being riveted.

ofde'i to secure the free ends of bars 12, and 13 e1an'iphi'g devices 15-, are ivoted to lower clamping member 10, and arranged to coeoperate with each bar These clamp ihg' devices; 15, are similar in con truction and are each formed with a shank 16, which is secured to lower clamping member 10-, by pivot pin 17. The shank is threaded to receive nut'18, and also look nut 19, which is extended to form a handle 20'. Bars 12, and 113, eat-h formed with a slot 21, see Fig II, for the reception of shank 16*.

The right hand section of lower supporting' member 10,. as viewed in Fig. III, is raised above the left hand section so as" to for-hi a gaging edge The lower sec tion of the material to be riveted is" indicated at B and contacts with this gaging edge 23. The upper section B of the material contacts with the side edge 24%,- of the clamping bar 13, which in this way forms a gage" for the upper section of the material. These two gaging edges 23, and 245, serve-to secure uniform overlapping of the meeting edges of the material to be riveted. After the sections of material have been properly placed, as stated above,- bars 12, and 13, are firmly clamped against the same by the nuts 18', and 1-9, and hold it in proper position for riveting.

Attached to the work holder at the rear .end: thereof is bar 25, which extends rearwardly and rests on roller 26. This bar is formed on its upper face with a series of notches 2?,which are adapted to he engaged by pawl 28, carried by lever 29. Spring 30, operating npon' lever 29, normally moves the same to the left as viewed in Fig. I, Lever 29, is adjust-ably connected to link 31, by means of bolt 32, which passes through slot 33',- in the end of the link'. The other end: of link 31, is attached to a connecting rod 34-, by! which the riveting devices are operated. Motion isimp'arted to-connecting rod 34,. by means ofcrank pin 35, carried by driviirg pulley 36, suitablysupported for rotation by a bracket 37. The movements of the punch are related to those of the work feed through this connecting link 31,-.sd as to be alternately operative.

As the riveting tool reciprocates, lever 29, is oscillated and pawl 28, engaging notches 27, feedsor moves the work holder step by step, thereby positioning the work holder for placing the rivets at predetermined points for riveting which correspond to the notches formed in thebar 25'. The predetermined position of the rivets is governed by the spacing of the teeth in the bar or jig 25-.- The work travels in the direction of the arrow shown in the drawing, and it will thus be seen that the placed rivets are in advance of the direction of m0ti0nthat is, in a direction away from the anvil.

It will be obvious that minor changes in the details of construction and arrangement of parts may he made without departing from the spirit of the invention as set forth in" the appended claims;

Having thus described our invention, we claim 1. The combination with a sup orting base, of a work supporting arm projecting therefrom, an anvil supported on said arm, an overhanging arm carried by said base, a riveting head mounted on said overhangin arm and including a riveting tool with which said anvil is adapted to cooperate, a work holder for supporting and feeding the work as it is riveted including means for engagingthe'e'dges of the material to be riveted, and means for feeding and posi tioning the work whereby rivets are placed at predetermined points in the material.

2. The combination with a supporting base, of a work supporting arm projecting therefrom, an anvil supported on said arm, an overhanging arm carried by said base, a riveting head mounted on said overhanging arm and including a riveting tool with which said anvil is adapted to cooperate, a work holder for supporting and feeding the work as it is riveted including a lower supporting member, clamping bars cooperating therewith,- said lower supporting member having a gaging surface for one edge of the material to be riveted, one of said clamping bars having a gaging surface for the other edge of the material to be riveted, means for holding. the clamping bars for clamping the material against the lower supporting member, and means for moving the supporting member step by step.

3. The combination with a supporting base, of a work supporting. arm projecting therefrom, an anvil supported on said arm, an overhanging arm carried by said base, a riveting head mounted on said overhanging arm and including a riveting tool with which said anvil is adapted to cooperate, a work holder for supporting and feeding the work as it is riveted including a lower supporting member, spaced clamping bars pivoted'thereto and cooperating therewith, said bars and lower supporting member having gaging surfaces for gaging the Oven lapped edge of the material to. be riveted, and means for moving the work holder on the supporting. member step by step,

whereby the material is placed into position to receive the rivets.

4. The combination with a supporting base, of a work supporting arm projecting therefrom, an anvil supported on said arm, an overhanging arm carried by said base, a riveting head mounted on said overhanging arm and including a riveting tool with which said anvil is adapted to cooperate, a work holder for supporting and feeding the work as it is riveted including a slotted supporting member disposed so that said anvil is located in said slot, one of the sides of said slotted member being higher than the other for forming a gaging surface, a pair of clamping bars pivoted at one end thereof to said slotted supporting member, the side of one of said clamping bars cooperating with the high side of said slotted supporting member forming gaging means for the work to be riveted, and means for moving-the supporting member step by step, whereby the material is placed in position to receive the rivets. 1

5. In a riveting machine, the combination of a lower supporting member, clamping members cooperating with said lower supporting member for holding the edges of the work overlapped, and means for adjustably pivoting said clamping members to said lower supporting member, whereby the space between the clamping members and the supporting members may vary to accommodate work of difierent thicknesses.

6. In a riveting machine, the combination of a lower supporting member, clamping members cooperating with said lower supporting member for holding the edges of the work overlapped, means for pivoting said clamping members to said lower supporting member, and means for holding said pivot under yielding tension, whereby the space between the clamping members and the supporting member varies automatically to accommodate work of diiferent thicknesses.

7 In a rivetingmachine, the combination of a lower supporting member, clamping members cooperating with said lower supporting member for holding the edges of the work overlapped, ears projecting from said lower supporting member, spring pressed bolts passing through said ears, a plate engaged by said bolts, and means for pivoting said clamping members in said plate, whereby the space between the clamping members and the supporting members automatically varies to accommodate work of different thicknesses.

In testimony whereof, we have hereunto signed our names at Wilmington, Delaware, this fourth day of April, 191

JAMES F. PIERCE. HARRY A. HE'INEL.

Witnesses:

CLARENCE SOUTHERLAND, WILLIAM Evns, 3RD.

bopiea'ofi this patent may be obtained tor five cents each, by addressing the Commissioner of Patents, Washington, D. 0, 

